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Best time to visit Galena, IL, USA

Our verdict

The best time to visit Galena is March

Want to know when to travel to Galena? Based on criteria such as the weather, cost of flights and hotels, and peak travel periods, March is the best time to go to Galena. Don’t just take our word for it though… We’ve put together loads of information below to help you decide, such as a monthly breakdown of the weather, what to pack, when to fly, and much more.

In the height of summer, temperatures in Galena can reach a maximum of 29℃ (84℉). The average low temperatures in winter float around -11℃ (13℉), while the coldest it gets down to is about -18℃ (0℉).

The longest days between sunrise and sunset in Galena are usually in July, so if you want to get the most out of your daytime activities, be sure to plan your visit around this time. May sees the most amount of rain in a month if you’re ok with chancing getting drenched, so if you’re looking to stay dry, visit in January instead.

Continue reading to find out loads more about when to travel to Galena, then use the handy tools below to search for the best flight and hotel options that are right for you.

Warmest month

July

Least rainfall

January

Most daylight

July

Galena seasons

Before you continue, it’s important to know when the seasons are in Galena as they might be different to yours depending on where in the world you’re travelling from. Galena is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Galena

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Galena for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Galena climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Galena for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Galena in January

  • Average temperature: -7℃ (19℉)
  • Average high temperature: -4℃ (25℉)
  • Average low temperature: -11℃ (13℉)
  • Average humidity: 87%
  • Average sunny days: 15 days
  • Average rainfall: 32mm (1") over 5 days
  • Average snow days: 13 days
15 days
of pure sunshine
5 days
of showers or rain

What to pack: If you’re heading to Galena in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Galena in February

  • Average temperature: -5℃ (23℉)
  • Average high temperature: -2℃ (29℉)
  • Average low temperature: -9℃ (16℉)
  • Average humidity: 86%
  • Average sunny days: 14 days
  • Average rainfall: 36mm (1") over 5 days
  • Average snow days: 11 days
14 days
of pure sunshine
5 days
of showers or rain

What to pack: If you’re heading to Galena in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Galena in March

  • Average temperature: 2℃ (36℉)
  • Average high temperature: 7℃ (44℉)
  • Average low temperature: -2℃ (29℉)
  • Average humidity: 79%
  • Average sunny days: 14 days
  • Average rainfall: 44mm (2") over 11 days
  • Average snow days: 6 days
14 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Galena in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Galena in April

  • Average temperature: 9℃ (47℉)
  • Average high temperature: 13℃ (56℉)
  • Average low temperature: 4℃ (39℉)
  • Average humidity: 77%
  • Average sunny days: 11 days
  • Average rainfall: 85mm (3") over 17 days
  • Average snow days: 2 days
11 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to Galena in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Galena in May

  • Average temperature: 15℃ (59℉)
  • Average high temperature: 20℃ (68℉)
  • Average low temperature: 10℃ (50℉)
  • Average humidity: 81%
  • Average sunny days: 9 days
  • Average rainfall: 104mm (4") over 20 days
9 days
of pure sunshine
20 days
of showers or rain

What to pack: If you’re heading to Galena in May, make sure you pack a warm jacket or coat.


Galena in June

  • Average temperature: 20℃ (68℉)
  • Average high temperature: 25℃ (76℉)
  • Average low temperature: 15℃ (60℉)
  • Average humidity: 84%
  • Average sunny days: 8 days
  • Average rainfall: 101mm (4") over 19 days
8 days
of pure sunshine
19 days
of showers or rain

What to pack: If you’re heading to Galena in June, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Galena in July

  • Average temperature: 22℃ (71℉)
  • Average high temperature: 27℃ (80℉)
  • Average low temperature: 17℃ (63℉)
  • Average humidity: 84%
  • Average sunny days: 9 days
  • Average rainfall: 80mm (3") over 18 days
9 days
of pure sunshine
18 days
of showers or rain

What to pack: If you’re heading to Galena in July, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Galena in August

  • Average temperature: 21℃ (70℉)
  • Average high temperature: 26℃ (79℉)
  • Average low temperature: 16℃ (61℉)
  • Average humidity: 81%
  • Average sunny days: 14 days
  • Average rainfall: 57mm (2") over 14 days
14 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Galena in August, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Galena in September

  • Average temperature: 17℃ (63℉)
  • Average high temperature: 23℃ (73℉)
  • Average low temperature: 12℃ (53℉)
  • Average humidity: 80%
  • Average sunny days: 15 days
  • Average rainfall: 68mm (3") over 13 days
15 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to Galena in September, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.

Galena in October

  • Average temperature: 10℃ (50℉)
  • Average high temperature: 15℃ (59℉)
  • Average low temperature: 6℃ (42℉)
  • Average humidity: 76%
  • Average sunny days: 15 days
  • Average rainfall: 69mm (3") over 13 days
  • Average snow days: 1 days
15 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to Galena in October, make sure you pack a warm jacket or coat.


Galena in November

  • Average temperature: 3℃ (37℉)
  • Average high temperature: 7℃ (44℉)
  • Average low temperature: -1℃ (31℉)
  • Average humidity: 77%
  • Average sunny days: 17 days
  • Average rainfall: 45mm (2") over 9 days
  • Average snow days: 3 days
17 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to Galena in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Galena in December

  • Average temperature: -3℃ (27℉)
  • Average high temperature: -0℃ (32℉)
  • Average low temperature: -6℃ (21℉)
  • Average humidity: 83%
  • Average sunny days: 16 days
  • Average rainfall: 38mm (2") over 8 days
  • Average snow days: 10 days
16 days
of pure sunshine
8 days
of showers or rain

What to pack: If you’re heading to Galena in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Top FAQs

The hottest month of the year in Galena is usually July, where temperatures tend to rise to around 27℃ (80℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Galena is generally around January. The dry season often coincides with cooler weather, so you should check the temperatures in January first to make sure it’s still a good time to go.
The rainiest time of year in Galena is generally around May, although the wetter season can sometimes extend a few months either side of May too.
If you want to get the most out of your time visiting Galena, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

Galena map